Finding the Fourth Proportional to 2,732.40, 3,771.72 and 2,070.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,732.40 : 3,771.72 = 2,070.72 : x
2. Step 2: Convert to fraction form
   2,732.40/3,771.72 = 2,070.72/x
3. Step 3: Cross multiply
   2,732.40x = 3,771.72 × 2,070.72
4. Step 4: Simplify right side
   2,732.40x = 7,810,176.04
5. Step 5: Solve for x
   x = 7,810,176.04/2,732.40
6. Step 6: Final answer
   x = 2,858.36